Disintegrator rotor



Oct. 17, 1944. J. A. HALL DISINTEGRATOR ROTOR Filed Sept. 24, 1943 2 Sheets-Sheet l Oct. 17, 1944.

J. A. HALL V DISINTEGRkTOR ROTOR I Filed se i. 24,1943 2 sheets-sheet 2 James A.Ha11

pact pin 'issplit longitudinally with its. halves Patented Oct. 17, 1944 2,360,562

UNITED STATES 7 2,360,562. DI R QBR TQ James A.-Hall, Houston-Tex. vP qat wmitemb 24, lttfiria Y9: W95 V sol m (01:. 33-11) V' h 'in tion l te to new a use u vie i f; th edisinteeretq eshewi a ict 1- provements in .,d isintegratorrotors. structed in accordance With t e Qv iiti in .,One o jec of th i ven ion is t provid an Y imp o di nteera ro o ha i imean r f m vably, mo nte -.up eit mpa t in 9 P r .v f pr t t n the atter fromwea he-remqvability of the means permitting ready replace- FigiirejFieni ment thereof. i 19 vpe s fuih A A mport n ob of h inve ion 1 :1 hQii iiEfiIl QlQ kihEfi e ovi can immi ve .d t erawrmtQ havin e eei ifiedr its :impact pins surrounded by wear members, whereby the pins are, unexposed to frictional. or contactwear and merely function to suDPO rt th memb rs.- a .v;

A particular object of the invention is to 'pro- 15 .di vide an improved disintegrator rotor, of I the character described, vwherein the wear members are frictipnaliy locked to the impact pins in suc h a manner that the impact of the material being disintegratedtends to assist the frictionailook- 20 ing ofsaid members and to prevent; accidental displacement thereof. Another object ofthe, invention is to provide an imp ov di i t s et rrof h th n shaft ISbetWeen t' acter described; wherein each wear membervinjf" fb1' ;}i fi1, eludessemi cylindrical.segments and eaoh,im-

spacedapart for. receiving portions of'the segments, therebeing wedgefmeans interposed between the adjacent portions of said segments for urging the same into snug engagement with the pin halves and each other, whereby the seg- I; h Q' B E hofisl their coaction with each' other and the wedge Wedge means is exposed to the interior of the rotor; and the impact of the material .being disvurged into and maintained in wedging position,

there being access to the reduced end of the vWedge'means to facilitate the ready removal of .vention will be hereinafter described, together with other features of the invention.

-f rom areading of the iollowing specification and L by reference-to the accompanying drawings, in

twhe 1 1 means. 1

A further object of the invention is to provide an improved disintegrator rotor, of the character-described, wherein the enlarged end a, of the integrated whereby said means is constantly the same. construction designed to carry out the inhe Figure 1 e isom i ew o a d in gr tq Figure 2 is a transverse,- vertical, sectional and removal thereof.

with the shoulder, the hub being recessed to receive the nut.

The rotor 20 is preferably a one-piece casting and includes a pair of flat, side plates 24 and 25 which are in axial alinement with each other and preferably with the shaft l3 and opening IS. The plate 24 is annular, while the plate 25 is preferably circular'and is secured to the flange of the hub 2| by a plurality of stud bolts 26 so as to enclose and protect the nut 23 and the end of the shaft l3 from wear. It is noted that the liner plates l8 which are secured to the forward and rear walls of the housing are cut away to receive r the plates of the rotor, which plates are disposed in close proximity to said walls. An annular defleeting ring 21, angular in cross section, telescopes within the annular plate 24 and is secured to the internal surface of the forward wall of the housing so as to surround the opening Hi thereof, whereby all of the material fed into the chute l1 and through said opening is directed into the interior of the rotor 20.

The plates 24 and 25 of the rotor are joined by a plurality of transverse impact pins or bars 28 preferably made integral therewith and disposed in parallel relationship at suitable uniform intervals'about the circumference of said plates. As is clearly shown in Figures 5 and 6, each pin 28 includes a pair of identical, longitudinal sections 29 which are substantially semi-circular in crosssection. The sections are disposed in spaced, parallel relationship with their flat surfaces opposed in substantially radial alinement with the axis of the rotor. A longitudinal, co-extensive groove or channel 30, semi-circular in cross-section, is formed in the inner, flat surface of each section immediately below the center or axis thereof and the portion of said surface below the groove is offset outwardly as shown at 3| so as to reduce the transverse width of the lower portion of the section. It is also desirable to round or bevel the lower portions 3| to a greater extent than the upper portions of the sections.

A complementary, substantially semi-cylindrical segment or shield 32 is adapted to be engaged around each section of each pin 28, whereby a pair of the segments coact to enclose said pin. As is clearly shown in Figures 3 and 4, the segments are co-extensive with the pin sections and have their ends engaging the internal surfaces of'the side plates 24 and 25 of the rotor. Each flange 33. When a segment is positioned upon one of the sections 29, its flange 33 will extend in an outwardly direction in the space between the pair of sections, which space is of sufficient width to accommodate the flange as well as insertion The upper end portion of the flange is enlarged to form a longitudinal, rounded bed or key 34 which is complementary to and adapted to engage within the groove 30 of the section upon the proper positioning of the segment. A longitudinal, tapered wedge member 35 is adapted to be driven into the space between the flanges 33 of the segments so as to maintain the same in their engagement with the inner, flat surfaces of the sections and thereby lock said segments in position around said sections. When the segments are so positioned, the outer or upper edge portions thereof are engaged. It is pointed out that the upper portions of the inner, flat surfaces may only be spaced a sufficient distance 7'5 apart to accommodate the reduced end of the wedge member 35.

Upon installing the segments 32, the bead 34 of one segment is engaged within the groove 30 of one of the sections 29 by inserting the flange 33 of said segment through the lower or inner end of the space between said sections. The segment is then swung inwardly toward and around the section so as to assume the position shown at the right of Figure 6. After this positioning of one of the segments, the other segment is inserted in a similar manner as shown at the left of Figure 6 and is then swung inwardly toward and around the other section. The segments will now be in the position shown in Figure 5 with their outer edge portions in engagement with each other. By inserting the wedge member 35 between the flanges 33 and forcing the same into snug engagement with said flanges, the segments will be latched in position around the sections.

In order to facilitate the removal of the segments, several semi-circular recesses or openings 36 are formed in the outer edge portions of said segments to form circular openings when said edge portions are in engagement. A punch or other suitable tool (not shown) may be inserted through these openings and engaged with the outer reduced end of the wedge member for forcing the same from its engagement with the segments. After this displacement of the wedge member, the segments may be removed by swinging first one and then the other outwardly away from its respective section as illustrated in Figure 6. Manifestly, this arrangement facilitates the ready removal and replacement of the segments.

The operation of the rotor is conventional, with the material to be disintegrated being fed into the interior of the rotor or cage 20 through the chute I1 and opening l6. As has been hereinbefore set forth, the deflecting ring 21 directs the material from the opening into the interior of the rotor. The shaft I3 drives the rotor at the desired speed and the material is struck by the impact pins 28, or rather by the segments 32, until reduced or disintegrated to a sufficient fineness to permit escape thereof through the spaces between adjacent pins. The material is further'disintegrated by striking the liner plates of the housing and is finally deflected to one of the end walls from where it is dropped through the discharger hopper I9.

Since the wedge members 35 are exposed to the interior of the rotor so as to be subjected to the impact of the material being disintegrated, it is manifest that said wedge members are urged into firmer engagement with the flanges 33 of the segments 32. Due to the opening formed by the recesses 36, the wedge members may be readily displaced in order to permit the removal and replacement of the segments. The latter is an important feature of the invention, because the segments are subject to the greatest amount of abrasive wear. If desired, the segments may be coated with a wear resistant metal, such as Stellite, in order to increase the wear resistant qualities of the same. It is also possible to remove and replace the liner plates 18 when the same become worn; Thus, it is manifest that the disintegrator may be reconditioned or rebuilt at a minimum'expense and within a very short period of time.

The foregoing description of the invention is explanatory thereof and various changes in the size, shape and materials, as well as in the details of the illustrated construction may be made, within the scope of the appended claims, without departing from the spirit of the invention.

What I claim and desire to secure by Letters Patent is:

1. A disintegrator rotor including, a cage formed of side plates joined by a plurality of spaced transverse members, each member being formed of a pair of spaced longitudinal sections, the sections being substantially semi-circular in cross-section and having substantially flat inner surfaces disposed in adjacent parallel relationship, a complementary impact segment overlying each section and coacting with the overlying segment of the other section to enclose the member, and means for frictionally and removably fastening the segments in position around said sections.

2. A disintegrator rotor including, a cage formed of side plates joined by a plurality of spaced transverse members, each member being formed of a pair of spaced longitudinal sections, the sections being substantially semi-circular in cross-section and having substantially fiat inner surfaces disposed in adjacent parallel relationship, a complementary impact segment overlying each section and coacting with the overlying segment of the other section to enclose the member, each segment having a portion interposed between said sections and engaging the flat inner surface of its respective section, and wedge means inserted between the sections and engaging the interposed portions of the segments for urging said segments into snug engagement with their respective sections.

3. A disintegrator rotor including, a cage formed of side plates joined by a plurality of spaced transverse members, each member being formed of a pair of spaced longitudinal sections, the sections being substantially semi-circular in cross-section and having substantially flat inner surfaces disposed in adjacent parallel relationship, a complementary impact segment overlying each section and 'coacting with the overlying segment of the other section to enclose the member, a flange made integral with each segment and engaging the flat inner surface of its respective section so as to be interposed between said sections, and wedge means inserted between and engaging the flanges to urge the same into snug engagement with the flat irmer surfaces of the sections so as to frictionally latch the segments in position.

4. A disintegrator rotor as set forth in claim 1 wherein the impact elements are formed with openings to permit access to the wedge means for removal thereof.

5. A disintegrator rotor including, a cage formed of side plates joined by a plurality of spaced transverse members, each member being formed of a pair of spaced longitudinal sections, the sections being substantially semi-cylindrical in shape, a complementary impact segment overlying each section and coacting with the overlying segment of the other section to enclose the member, each segment having a portion interposed between said sections and engaging the inner surface of its respective section, coacting means formed on each inner surface and each interposed portion for holding the segments in position, and wedge means disposed between and engaging the interposed portions for frictionally locking said segments in such position.

6. A disintegrator rotor including, a cage formed of side plates joined by a plurality of spaced transverse members having spaced longitudinal sections, impact elements formed of segments mounted upon each member and overlying its sections so as to surround the member, each segment having a portion thereof interposed between' said sections, and wedge means engaging the interposed portions of the segments to urge the same into snug engagement with the sections and thereby frictionally latch the elements in position.

"I. A disintegrator rotor as set forth in claim 6 wherein the material to be disintegrated is fed to the central portion of the cage, the wedge means being exposed to the interior of said cage and subjected to the impact of the material bein disintegrated so as to be constantly urged into frictional latching position.

8. A disintegrator rotor as set forth in claim 1. wherein the material to be disintegrated is fed to the central portion of the cage, the wedge means being exposed to the interior of said cage and subjected to the impact of the material being disintegrated so as to be constantly urged into frictional latching position.

JAMES A. HALL. 

